How does CoroutineScope inside ViewModel differ from other scopes, and how to use it correctly?

CoroutineScope inside a ViewModel differs in that its lifecycle is tied to the lifecycle of the ViewModel itself. This means that all coroutines launched within this scope are automatically canceled when the ViewModel is destroyed, helping to prevent memory leaks and unnecessary tasks.

In Android, this is usually achieved using viewModelScope from the androidx.lifecycle library:

class MyViewModel : ViewModel() {
    fun loadData() {
        viewModelScope.launch {
            // Perform asynchronous task
            val data = repository.getData()
            // Update UI via LiveData or StateFlow
        }
    }
}

Proper use of viewModelScope allows safe launching of asynchronous operations without worrying about their cancellation when the ViewModel is destroyed. Unlike other scopes, such as GlobalScope, viewModelScope manages the lifecycle and prevents leaks.